Our neighbors recently returned home from a vacation, and their family put up a "welcome home" sign. Ricki asked me what it was (which pleased me, as she showed inquisitiveness to be asking). So I explained, and thought no more about it.
A day later, coming home from a late-night meeting, I found a sign on the door. It was a bit hard to decipher, but the message was clear: I had been missed, and Ricki cared enough to say so.